<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .nav a{
            background-color: sandybrown;
            color:snow;
            display: inline-block;
            width: 200px;
            height: 100px;
            text-decoration: none;
            text-align: center;
            line-height: 100px;
        }
        .nav .bg1{
            background: url(images/英雄联盟logo.png) no-repeat;
        }
        .nav .bg1:hover{
            background-image: url(images/icon.png);
        }
    </style>
</head>
<body>
    <div class="nav">
        <a href="#" class="bg1">五彩导航</a>
        <a href="#">五彩导航</a>
        <a href="#">五彩导航</a>
        <a href="#">五彩导航</a>
        <a href="#">五彩导航</a>
    </div>
</body>
</html>